allow for

Definition of allow for

1: to think about or plan for (something that will or might happen in the future)
When purchasing property, the company should allow for possible future growth/expansion.

2: to consider (something) when one makes a calculation
The total distance, allowing for detours, is about 10 miles.If you allow for inflation, he's actually earning less money now than he was 10 years ago.

3: to make (something) possible
The design of the system allows for easy upgrades.